GRE Practice Question and Answer

Q: Sonika invested an amount of Rs.5800 for 2 years. At what rate of compound interest will she get an amount of Rs.594.50 at the end of 2 years ? 2034 0

  • 1
    6.5%
    Correct
    Wrong
  • 2
    6%
    Correct
    Wrong
  • 3
    5%
    Correct
    Wrong
  • 4
    4.5%
    Correct
    Wrong
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Answer : 3. "5%"
Explanation :

Answer: C) 5% Explanation: C.I = P1+r100t-1   594.5 = 58001+r1002-1  594.55800+1=1+r1002   r100=1.05-1=0.05=> r = 5 % .

Q: I have legs, but i cannot walk. Who am I? 2033 0

  • 1
    Dragon flies
    Correct
    Wrong
  • 2
    Prawns
    Correct
    Wrong
  • 3
    House flies
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 1. "Dragon flies"
Explanation :

Answer: A) Dragon flies Explanation: Dragon flies have legs but they cannot walk.

Q: If the numerator of a fraction is increased by 150% and the denominator of the fraction is increased by 350%, the resultant fraction is 25/51. What is the original fraction ? 2028 0

  • 1
    31/25
    Correct
    Wrong
  • 2
    15/17
    Correct
    Wrong
  • 3
    14/25
    Correct
    Wrong
  • 4
    11/16
    Correct
    Wrong
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Answer : 2. "15/17"
Explanation :

Answer: B) 15/17 Explanation: The original fraction is  2551 × 350+100150+100  = 15/17.

Q: Find the next number in the given series 0.25, 8, 128, 1024, ? 2027 0

  • 1
    4096
    Correct
    Wrong
  • 2
    2526
    Correct
    Wrong
  • 3
    8486
    Correct
    Wrong
  • 4
    2620
    Correct
    Wrong
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Answer : 1. "4096"
Explanation :

Answer: A) 4096 Explanation: Here given series follows a pattern that 0.25, 8, 128, 1024, ? 0.25 x 32 = 8 8 x 16 = 128 128 x 8 = 1024 1024 x 4 = 4096

Q: Three strategies P, Q and R have been initiated for cost cutting in a company producing respectively 20%, 30% and 10% savings. Assuming that they operate independently, what is the net saving achieved ? 2016 0

  • 1
    49.6%
    Correct
    Wrong
  • 2
    50.4%
    Correct
    Wrong
  • 3
    33.67%
    Correct
    Wrong
  • 4
    66.66%
    Correct
    Wrong
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Answer : 1. "49.6%"
Explanation :

Answer: A) 49.6% Explanation: As these three strategies P, Q and R are independent so these will cut cost one after the other.If initial cost is Rs 100, then20% cost is cut after initializing strategy P, then cost will remain 80% = 80further 30% cost is cut after strategy Q, then cost will remain 70% of 80 = 56further 10% cost is cut after strategy R, then cost will remain 90% of 56 = 50.4 Thus final cost remains 50.4 % of the original cost. Hence net saving is 100 - 50.4 = 49.6 %.

Q: Here are some words translated from an artificial language. briftamint means 'militant'uftonel means 'occupied'uftonalene means 'occupation' Which word could mean "Occupant"? 2009 0

  • 1
    elamint
    Correct
    Wrong
  • 2
    briftalene
    Correct
    Wrong
  • 3
    uftonamint
    Correct
    Wrong
  • 4
    elbrifta
    Correct
    Wrong
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Answer : 3. "uftonamint"
Explanation :

Answer: C) uftonamint Explanation: Brift means the root word mili; the suffix amint means the same as the English suffix –tant; the root word ufton– means occupy; el means the suffix –ied of occupied; and alene means the suffix –tion. (Because ufton means occupy, choices a, b, and d can be easily ruled out.)

Q: Which of the following is generally true about the stratosphere? 2009 0

  • 1
    It is very dry
    Correct
    Wrong
  • 2
    It is very moist
    Correct
    Wrong
  • 3
    The dryness level varies with the season
    Correct
    Wrong
  • 4
    The dryness level varies with the moon cycle
    Correct
    Wrong
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Answer : 1. "It is very dry"
Explanation :

Answer: A) It is very dry Explanation: The stratosphere layer of the atmosphere is very dry.

Q: The top and bottom of a tower were seen to be at angles of depression 30° and 60° from the top of a hill of height 100 m. Find the height of the tower ? 2005 1

  • 1
    42.2 mts
    Correct
    Wrong
  • 2
    33.45 mts
    Correct
    Wrong
  • 3
    66.6 mts
    Correct
    Wrong
  • 4
    58.78 mts
    Correct
    Wrong
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Answer : 3. "66.6 mts"
Explanation :

Answer: C) 66.6 mts Explanation: From above diagramAC represents the hill and DE represents the tower Given that AC = 100 m angleXAD = angleADB = 30° (∵ AX || BD ) angleXAE = angleAEC = 60° (∵ AX || CE) Let DE = h Then, BC = DE = h, AB = (100-h) (∵ AC=100 and BC = h), BD = CE tan 60°=AC/CE => √3 = 100/CE =>CE = 100/√3 ----- (1) tan 30° = AB/BD => 1/√3 = 100−h/BD => BD = 100−h(√3)∵ BD = CE and Substitute the value of CE from equation 1 100/√3 = 100−h(√3) => h = 66.66 mts The height of the tower = 66.66 mts.

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